At obverse
禁衛隊 - Imperial Guards [protecting the emperor] Corps
立命館 - Ritsumeikan [university] https://en.wikipedia.org/wiki/Ritsumeikan_University
At reverse
中学校 - middle school
Under the lower loop you will find the mint mark.
About their activities https://ja.wikipedia.org/wiki/立命館禁衛隊
A short excerpt
from